.play_window {
    background-color: #fff;
    width: 1140px;
    margin: 50px auto;
    border-radius: 10px;
    border: solid 1px #ebebeb
}

.play_window p.h1 {
    /* font-size: 30px;
    font-weight: 400;
    color: #ff183b;
    line-height: 1;
    margin: 0;
    padding: 28px 0;
    text-align: center;
    border-bottom: solid 1px #ebebeb */
    width: 100%;
    height: 92px;
    margin: 0;
}

.play_window p.h1 img{
    width: 100%;
    height: 100%;

}

.play_window #stFormShow {
    display: block;
    height: 110px;
    line-height: 110px;
    font-size: 32px;
    color: #fa0022;
    text-align: center;
    border-top: solid 1px #ebebeb
}

.play_window #stFormShow span {
    background-color: #ff183b;
    color: #fff;
    padding: 4px 15px;
    border-radius: 22px;
    margin-right: 9px
}

.video_container {
    height: 580px;
    display: flex;
    flex-wrap: wrap
}

.video_container .video {
    width: 72%;
    background: url(https://img.mison.cn/libs/swiper/css/jiangxuejin_video.loading.png) no-repeat center;
    height: 100%
}

.video_container .video iframe {
    height: 100%;
    width: 100%
}

.video_list {
    width: 28%;
    height: 100%;
    background-color: #fbfbfb;
    border-left: solid 1px #ebebeb
}

.video_list>ul {
    display: flex;
    padding: 0 10px;
    align-items: center;
}

.video_list>ul li {
    flex: 1;
    padding: 15px 0;
    text-align: center;
    cursor: pointer;
    position: relative;
    font-size: 14px
}

.video_list>ul li.active {
    color: #ff183b
}

.video_list>ul li.active::before {
    content: '';
    width: 14px;
    height: 3px;
    background-color: #ff5558;
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%)
}

.video_list .swiper-container {
    height: 83%
}

.video_list .swiper-slide {
    position: absolute;
    top: 0;
    transition: all .4s;
    width: 100%
}
.video_list .swiper-slide--6 {
    left: -2052px
}
.video_list .swiper-slide--5 {
    left: -1710px
}

.video_list .swiper-slide--4 {
    left: -1368px
}

.video_list .swiper-slide--3 {
    left: -1026px
}

.video_list .swiper-slide--2 {
    left: -684px
}

.video_list .swiper-slide--1 {
    left: -342px
}

.video_list .swiper-slide-0 {
    left: 0
}

.video_list .swiper-slide-1 {
    left: 342px
}

.video_list .swiper-slide-2 {
    left: 684px
}

.video_list .swiper-slide-3 {
    left: 1026px
}

.video_list .swiper-slide-4 {
    left: 1368px
}

.video_list .swiper-slide-5 {
    left: 1710px
}
.video_list .swiper-slide-6 {
    left: 2052px
}

.video_list .video_ele_a {
    display: block;
    width: 100%;
    height: 20%
}

.video_list .video_ele {
    width: 100%;
    height: 100%;
    padding: 10px 20px 10px 6px;
    display: flex;
    align-items: center;
    font-size: 14px
}

.video_list .video_ele p {
    padding: 5px 0
}

.video_list .video_ele i {
    width: 20px;
    height: 20px;
    margin-right: 6px
}

.video_list .play_icon {
    width: 40px;
    height: 86px;
    margin: 0 19px 0 0;
    background: url(../images/democlass/play.png) no-repeat left/contain
}

.video_list .video_ele_active {
    background-color: #ebebeb
}

.video_list .video_ele_active .play_icon {
    background: url(../images/democlass/play_active.png) no-repeat left/contain
}

#videoList3 .video_ele_a {
    height: 20%
}

#videoList4 .video_ele_a {
    height: 20%
}

form.st_nyroModal {
    position: fixed;
    top: 50%;
    right: 50%;
    transform: translate(50%,-44%);
    background-color: #fff;
    padding: 40px 50px;
    text-align: center;
    border-radius: 10px;
    z-index: 900
}

form.st_nyroModal>div {
    position: relative
}

form.st_nyroModal>div i {
    position: absolute;
    left: 13px;
    top: 15px;
    font-size: 20px;
    color: #666
}

form.st_nyroModal>div .icon-guanbi1 {
    left: auto;
    right: -87px;
    top: -71px;
    font-size: 40px;
    color: #fff;
    cursor: pointer
}

form.st_nyroModal .input-error {
    display: none;
    position: absolute;
    top: 58px;
    left: 7px;
    color: red;
    font-size: 12px
}

form.st_nyroModal input[type=text] {
    width: 340px;
    margin-bottom: 40px;
    padding: 13px 0 13px 40px;
    border-radius: 5px;
    font-size: 16px;
    color: #666;
    border: solid 1px #e2e2e2
}

form.st_nyroModal input[type=text]#stPhone {
    margin-bottom: 50px
}

form.st_nyroModal input[type=button] {
    background-color: #ff5558;
    font-size: 18px;
    color: #fff;
    border-radius: 23px;
    padding: 11.5px 0;
    outline: 0;
    width: 340px;
    border: none
}

.message_box {
    position: fixed;
    top: 50%;
    right: 50%;
    transform: translate(50%,-66%);
    z-index: 99;
    background: #fff;
    padding-top: 40px;
    border-radius: 6px
}

.whychooseus {
    width: 1140px;
    margin: 75px auto;
    min-width: 1140px;
    background-color: #fff;
    text-align: center;
    padding: 55px 0 60px 0;
    border-radius: 10px;
    border: solid 1px #ebebeb
}

#videoList1 {
    overflow: auto
}

#videoList1 .nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 0 30px 0 32px
}

#videoList1 .nav li.active a {
    color: #ff183b
}

#videoList1 .nav li:nth-child(3) a {
    margin-right: 0
}

#videoList1 .nav li a {
    display: block;
    padding: 12px 0
}

#videoList1 .nav li a:hover {
    color: #ff183b
}

#videoList1 .nav li a:focus {
    color: #ff183b
}
#videoList6 {
    overflow: auto
}

#videoList6 .nav {
    display: flex;
    justify-content: space-around;
    align-items: center;
    margin: 0 30px 0 32px
}

#videoList6 .nav li.active a {
    color: #ff183b
}

#videoList6 .nav li:nth-child(3) a {
    margin-right: 0
}

#videoList6 .nav li a {
    display: block;
    padding: 12px 0
}

#videoList6 .nav li a:hover {
    color: #ff183b
}

#videoList6 .nav li a:focus {
    color: #ff183b
}

#videoList3 {
    overflow: auto
}

.swiper-container {
    overflow: hidden
}

.swiper-wrapper {
    position: relative
}

.newnav {
    width: 100%;
    height: 50px;
    line-height: 50px;
    font-size: 21px;
    font-family: PingFang SC;
    font-weight: bold;
    color: #939393;
    display: flex;
    align-items: center;
    border-bottom: 1px solid #ccc;
    
}

.newnav-box {
    width: 50%;
    text-align: center;
    position: relative;
}

.newnav-img {
    position: absolute;
    top: 0;
    right: 5px;
    width: 50px;
    height: 17px;
}

.newnav-img img{
    display: block;
    width: 100%;
    height: 100%;
}

.newnav-active {
    color: #FF183B;
}